London 2012 - Begin your journey here

"The fact that we've been providing paving for the Olympic site has kept the factories in Halifax very busy and as we go forward there's more work to come."

Other businesses to have benefited include Scunthorpe-based County Turf, which has completed a contract to provide custom grown sports greenscape turf for the Olympic Stadium.

Managing Director Andy Fraser said: "The contract has been excellent news for County Turf as we have been able to safeguard existing jobs in a crucial time where the bulk of our business that is based in the building and housing markets has seen a large decline.

"Without specialist projects such as the Olympic contract, redundancies would have been inevitable."

Family-run business Prestons of Potto, based in Northallerton, North Yorkshire, has completed a contract to transport 1,500 vehicle loads of steelwork to the Olympic site.

Managing Director David Preston said it had brought "great stability" to the company.